He has extensive experience and expertise in radiation transport analysis, reactor physics, criticality safety, high performance computing, parallel/vector computing, random sampling, computer benchmarking. He has been a lead developer for the MCNP, RACER, and VIM Monte Carlo codes at LANL, KAPL, and ANL. Forrest is a Fellow of the American Nuclear Society with over 300 technical publications.
Honors awarded to Forrest include: ANS Gerald C. Pomraning Award, ANS Distinguished Service award, Los Alamos Achievement awards, Defense Programs of Excellence awards, GE Outstanding Technical Achievement Award, and others.